authorisation feedback

I contacted your Call Centre on the 30/08/2017 for authorization and was told that I would receive feedback with 8 hours.

No feedback was given and when I phoned in on the 05/09/2017 I was informed that my request was declined and the agent couldn't advise me why it was declined.

I cancelled my discovery medical aid end of April because it was compulsory for me to join Bonita's since I changed companies. My original application was completed to join Bonita's was 06 April 2017 and start date 01 May 2017. I was advised that there is no waiting period because we are a corporate company and could use the medical aid immediately so why is my request for authorization being declined when there was no waiting period in place and the only reason for me joining Bonita's is because it was compulsory as its the medical aid the company im employed with provides.

On both occasions the Call Centre couldn't provide me with the relevant feedback or information.

please advise valid reasons as I will take my complaint further.